Hygrolid: what about it?

This is basically a widemouth mason jar lid that has a hyrometer in it. Seems like it would make life easier curing and i'd go ahead and buy a couple, but they're 15 bucks a pop :shocked: anybody have any experience with this product? is it worth it? speculations?
be easy,

This is a GREAT idea ...Im' up for 5 or so ...now cannas almost legal now....some great ideas are coming forth ....like this !!! LOL

I was just looking at these anyone bought any? Company ok to buy off their website?

I have many Hygrolids. Love them. You really only need one to test each curing jar but a few makes it easier and they look nice on stash jars. Cheapest to buy from hygrolid.com safe and reliable and fast shipping. You can pay a bit more on amazon.com.